Orthodontics - section of Orthopedic dentistry concerned with the study of etiology, diagnosis, prevention and treatment of dento-maxillary anomalies. Priority target interventions in orthodontics is mastication and speech apparatus of children and adolescents. However, it should be noted that the children field of ortodontologii beyond the facial skeleton and immediately mouth. The subjects of orthodontics are violations occurring in the process of mastication, speech. Orthodontics is not engaged in the strains, ie damage arising from injury or illness, correcting only the anomaly of development, for example, genetically determined defects. Correct deformities deals orthopedic dentistry.